Corning Is Clearly a Buy

Almost two years ago, Corning announced that its engineers had changed the basic nature of glass. At the time, the stock was trading around $12.83, and few people were much interested in Corning (ticker: GLW) or its Willow Glass, which is malleable and thin as paper.

Today, Corning's stock is around $21.24, almost 100% higher since the Willow Glass announcement. The company is scheduled to report earnings on Monday, and investors are...